/Engine/Source/Editor/Sequencer/Public/ISequencerSection.h
Create a custom channel model
virtual [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [UE::Sequencer::FChannelModel](API\Editor\Sequencer\MVVM\ViewModels\FChannelModel) > ConstructChannelModel ( [FName](API\Runtime\Core\UObject\FName) InCategoryName, const [FMovieSceneChannelHandle](API\Runtime\MovieScene\Channels\FMovieSceneChannelHandle) & InChannelHandle ) const